service module
noun
: a space vehicle module that contains oxygen, water, fuel cells, propellant tanks, and the main rocket engine
Examples of service module in a Sentence
Recent Examples on the Web
The first one, called G1, will test the crew and service modules, reentry, parachute deployment and a safe splashdown in the Bay of Bengal.
—
Sharmila Kuthunur, Space.com, 27 Jan. 2025
The spacecraft uses helium to pressurize the service module's propulsion system when in transit to and from the space station.
—Stephen Clark, Ars Technica, 28 June 2024
Once the de-orbit burn was complete, the Starliner's service module, housing the OMACs, 28 RCS jets, the helium tanks and other critical but no-longer-needed systems, was jettisoned to burn up on the atmosphere.
—William Harwood, CBS News, 7 Sep. 2024
While experts previously noted its advanced maneuverability, observers still have questions about the space plane’s main payload bay that is roughly the same area as a truck bed, as well as its service module adapter capable of carrying even more equipment into orbit.
—Andrew Paul, Popular Science, 10 Oct. 2024
See all Example Sentences for service module 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Sharmila Kuthunur, Space.com, 27 Jan. 2025
The spacecraft uses helium to pressurize the service module's propulsion system when in transit to and from the space station.
—Stephen Clark, Ars Technica, 28 June 2024
Once the de-orbit burn was complete, the Starliner's service module, housing the OMACs, 28 RCS jets, the helium tanks and other critical but no-longer-needed systems, was jettisoned to burn up on the atmosphere.
—William Harwood, CBS News, 7 Sep. 2024
While experts previously noted its advanced maneuverability, observers still have questions about the space plane’s main payload bay that is roughly the same area as a truck bed, as well as its service module adapter capable of carrying even more equipment into orbit.
—Andrew Paul, Popular Science, 10 Oct. 2024
See all Example Sentences for service module
Articles Related to service module
Dictionary Entries Near service module
Cite this Entry
“Service module.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/service%20module. Accessed 22 Feb. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share